Rivers, lakes, ponds and marshes with heavy vegetation provide ideal habitat.

Such ponds also provide a habitat for several kinds of animals.

The ponds provided a good source of food for the local village folk, until pollution set in later.

The occasional pond or spring provided just enough water to fill the water bags and drinking bottles.

This was because only small ponds and wells provided the main source of water for rice field irrigation.

The pond provides thermal mass which is used to dissipate the heat prior to sending it to a cooling tower.

A one-acre pond can provide a good fishery for a single family, Phillips said, with two acres even better.

The ponds and wetlands provide valuable amphibian habitat, home to more than a dozen species.

Man-made ponds provide habitats for a variety of wildlife.

Particles travel just under the berm visible in the lower left, while the circular pond provides cooling water.